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2. “Infrastructure Security." Cybersecurity and Infrastructure Security Agency CISA, www.cisa.gov/cisa/infrastructure-security#:~:text=Critical infrastructure describes the physical,or public health or safety.
3. "Four Ways to Improve Technology Service Resiliency.";Agarwal;McKinsey & Company,2020
4. "Communities Communicating with Formal and Informal Systems: Being More Resilient in Times of Need.";Armour;Bulletin of the American Society for Information Science and Technology,2010
5. Berkeley III, Alfred R., and Mike Wallace. (2010) “A Framework for Establishing Critical Infrastructure Resilience Goals.”National Infrastructure Advisory Council. https://www.dhs.gov/xlibrary/assets/niac/niac-a-framework-for-establishing-critical-infrastructure-resilience-goals-2010-10-19.pdf